Hostplant, larval age, and feeding behavior influence midgut pH in the gypsy moth (Lymantria dispar)

  title={Hostplant, larval age, and feeding behavior influence midgut pH in the gypsy moth (Lymantria dispar)},
  author={Jack C. Schultz and Martin J. Lechowicz},
The midgut pH of late instar gypsy moth (Lymantria dispar L.) larvae is strongly alkaline, and varies with diet, larval stadium, and time since feeding. Midgut pH rises with time since feeding, and does so more quickly, reaching greater maximum values, on some diets than others. Leaf tissues of 23 tree species resist increases in alkalinity differentially; this trait and differing initial leaf pH may explain the impact of diet on gut pH. Third instar larvae may have gut conditions favorable for… CONTINUE READING
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